And alternate TMIP setup #2, which I use happily - a Slik Sprint Pro EZ - good, lightewight, strong pod with nice extension, quick release legs, and compact enough to fit in even the smaller lockers...and just a hair over $100 (with a standard Pan-Tilt head). ; I've been happily using mine for a few years now.
And as mentioned, lockers are a great way to deal with tripods during the day when not needed - just go back and get them as evening hits, and you're ready for night shots. ; Remember, locker rentals are for the day, so even transferring parks you can get credit to move lockers over to the next park - keep the receipt and mention it to the locker attendant.