Good morning Dave and Flash,
I am from Salisbury Maryland on the Eastern shore.
The weather in February is as it is now, winter. By April it will be Spring with a mixture of temperature and light. We the locals, always say "If you don't like the weather, just wait, it will change."
Driving time and distance from 1200 Penn. DC to Salisbury, MD. 2 hours 33 min. Distance 121 miles.
No permit required for "Large format" to MY knowledge. I've never had a problem here on the shore.
All the best,