Girlfriend lives south of Gettysburgh. I spend a fair amount of time there. Most places are open, but, some of the restuarants have limited menues amd seating.
The Battlefield is wide open for business (Touriests) until supposedly 7pm at night, but, I noticed all the gates open for people to drive through the areas (different battlefields). Lots of people were walking and biking too.
I ate at The Dobbins House (1700's Tavern) Monday, Food was great, but, it is pricey. I did not sit in the bar, so I cannot speak about that part. I had reservations in the dining room.
Appalachian Brew Company in town has great brew and food !
Mason Dixon Distillery & Restaurant has great food and they have some great booze too.
Troegs Brewery in Hershey is pretty darn cool too and they also have great food.
Most places require masks. Lots of people in stores and other venues without masks. You'll have to make a judgement call on what is happening at your particular place when doing things.
Watch your speed in those areas, but, as of now, only police in PA that can use Radar are the State Police, and that is only from a static position.
I do not have a lot of experience with gun shops in those areas, there are a few but, nothing that really stands out for me. And, a lot of gunshops are closed on Monday here.
Others will have to chime in on Gun related stuff.
There are over 1000 microwbreweries in PA now, with a lot of them attached to bars.