Horrible day at TEB yesterday! Called for clearance at 1430, got clearance at 1500. Called gate hold and told 2 hr. min. Luckily was able to start at 1630, thats where the luck ran out. Ground let us taxi at 1700, on the taxi was told to ask tower for new route(would have been third route given!). Called tower and was told there was no route for us, just get in line and wait. LANNA and BIGGY closed for business. Sat in line until 1915 and tower still had no estimate of openings. Old a$$ Beechjet has no ground A/C and ACM just trickles so we couldn't shut down one engine or we would really roast. Now the fuel was too low to get to Atlanta, taxied back to Meridian topped off. Called ground asked if we had a route yet, NOPE! and no clue when. Called it a day and went to the Hilton. Got out this morning in less than 10 mins. from engine start to takeoff. What a goat rope!