@zkx14 My GTS is registered as an antique and yes, you can drive at night as long as the lighting meets the current vehicle lighting code (mine does, so does yours).
“Antique vehicles operated exclusively between sunrise and sunset are exempt from the normal lighting requirements of the Pennsylvania Vehicle Code, but must have their original lighting equipment.”
As far as when you can drive it, see below. You can drive it to work on Wednesday and still drive it to a car show on the weekend. The are really just trying to keep an uninspected vehicle from being used as daily transportation.
“Permitted use shall be limited to participation in club activities, exhibits, tours, parades, occasional transportation and similar uses. Occasional transportation and similar uses are defined as no more than one day a week.”